Slatted conveyer or apron and the like



Jan. 19,1926. 1,570,581

l v M. F. KEVLIN SLATTEDONVEER 0R APRON AND THE LIKE Filed Dec. 4, 1923 Patented Jan. 19, 1926.

iviATHEW E. KEVLIN, OESPRINGEIELD, vERivioNT,I AssIGNonTo THE JAMES HUNTER MACHINE COMPANY, OENQRTH ADAMS. MASSACHUSETTS, A CORPORATION OE MASSACHUSETTS.

PATENT OFFICE.

SLATTED CONVEYEROR VAinoN AND THE LIKE.

Application'le'd December 4, 1923.. Serial No. 678,473. if

10 all whom t may concern.' U

Be it known that I, MATHEW'F. -KEvLiN, a citizen ofthe United States, residing at Springeld, in the countyk of l/Vindsor, State vofVermont, have invented a certain new and useful Improvement in Slatted Conveyers or Aprons and the like, of which the following is a specification, reference-being had Atherein to the accompanying drawings.

vThe'inventionhas relation to the slatted conveyers or aprons which 'are used in wool V'scourer-s,mining pickers, and'various other `machines, and in particular lto the slats which are combined with flexible connecting means, suchas chainsv or belts,` to form such conveyers or aprons. f p f In accordance withV the invention the transversely vextending slats of a? conveyer or apron are respectively formedfwith a longitudinal groove or depression between raised ribs, vand the rivets or other fastening means which attach the slats to the connecting means are yapplied between the two raised ribs, with the ends of the rivets or other fastening means contained within the longitudinal groove or depression.

An object of the invention is to provide a construction permitting a conveyer or apron to work in close contact with the surface of a roll, for instance the bottom squeeze-roll of a wool scourer, without wear of the heads of the rivets or other fastening means which combine the slats with the flexible connecting means. It is customary to set a conveyer or apron to cause the slats to make the close Contact just mentioned `with the surface of the adjacent roll, but in cases in which the heads ofthe rivets are exposed at the surfaces of the slats to contact with the said roll this contact results in the wearing away of the heads or ends of the rivets so that they cease to hold the slats to the chai-ns or belt` In some cases in practice slats havebeen countersunk around the rivet heads or ends to enable the Said heads or ends to be depressed below the slat-surfacewhich contacts with the roll, but this entails expense in makng a conveyer or apron, and also renders inconvenient the removal of av Slat, which sometimes is necessary. When such countersinking around the rivet heads or ends has been resorted to in constructing the apron it becomes necessary, in effecting such removal, to dig away the wood to afford -slat in use heretofore.

tice, the employment of narrowr slats, closel from the surface of the roll.

access to the depressed heads or ends forfthe -pose of making repairs.

Another object of the 'invention is'to provide for securing two wiping'operations by each slat, thereby keeping the roll cleaner than in the case of the single wiping operationvthat is accomplished by the ordinary In ordinary pracypurposeof disconnecting the slat from the connecting means; which results in inyury together and proportionately increased in number,'in the undertaking to improve the lwiping action, has involved the following drawbacks: Itnec'essitates the use of Aa light Slat which is subject to warping and to breakage, and it involves also the use of a lighter chain in the case, Of a conveyer or apron comprising flexible chains. In the case of a conveyer comprising slats attached to a belt the belt "would not have to be any lighter, but the drawback with resperctrto warping and tendency tobreakage would exist. lhen a slat warps so as to bulge out toward the roll, the conveyor or apron has tobe spaced farther away from the surface of the roll, with the result that the slats which remain straight ai'e separated too far If a slat warps the other way, it leaves an opening or hole between such slat and the surface of the roll. v

An illustrative embodiment of the invention is shown in the accompanying drawings, in which,-

Fig. 1 is a diagrammatic view of the top and bottom squeeze-rolls vof a wool scourer Y or the like machine, and a portion of a conveyer or apron cooperating therewith, illustrating the connection in which the present invention is applied.

Fig. 2 is a sectional view of a slat formed according to the invention, showing anattached link of the flexible connecting chain, the section being on line 2-2 of Fig. 4.

Fig. 3 is a view similar to Fig. 2, the section being made on line 3-3 of Fig. 4.

Fig. 4 is a bottom view of a portion of a slat and a chain link combined therewith.

- I-Iaving reference to the drawings,-

Fig. l thereof is intended to illustrate the relations between a. conveyer or apron 23,

in passing around a guide-roll 2li, and the lowerroll, 22, ot' the pair oi squeeze-rolls 21, 22, of a wool scourer or the like machine. The remaining views show the special features oit' construction which are more particularly involved in the invention.

The slat 1 is formed with a deeply-sunk v longitudinal groove ll on its acting surface,

between two raised ribs 2, 2, preferably rounded as shown.

The connecting means indicated in the present 'instance is the familiar detachablelink chain, commonly termed a link-belt. The fastening means by which the chainlink 3 that is shown in the drawings is illustrated as attached to the slat l comprises rivets 6, (i, which pass through holes 4i, 4, in the lugs 5, 5, at opposite ends or' the link 3, up through the material of the slat, and out into the longitudinal groove 1l of such slat. AVfithin such groove, a washer 7 is applied to the end of each rivet, and suchl end is burred or headed over in the' usual manner, as at 8. The location oi the rivetheads and washers in the longitudinal depression of the improved sla-t, places them where they are protected against wear through Contact witha roll. It allows the burred or headed-over ends 8, 8, of the rivets 6, 6, to stand up'slightly above the surface of the adjoining portion of the slat,

so that when it is necessary to cut the rivets so as to detach the slat, thisl may be done easily by means of a chisel without any injury to the material of the slat. g

The ribs Vat opposite sides of the depression effect the two contacting or wiping operations to which reference has been made, as they pass the roll aforesaid, instead ot the single contact in the case of the ordinary slat, thus doubling the efiiciency of the conveyer or apron in this respect over that of prior constructions.

What I claim as my invention is,-

l. The combination with a roll, of a iexible conveyer' or apron cooperating therewith and comprising transversely extending slats each having a plurality of raised wiping ribs adapted to wipe adherent matter from the periphery of the roll.

2. The combination with a roll, of a iexible conveyer or apron cooperating therewith and comprising transversely extending slats each having a plurality of raised wiping ribs adapted to wipe adherent matter from the periphery 'of the roll, means for combining such slats in series, and rivets securing each slat to the combining means, said rivets headed down within a longitudinal groove between said ribs and thereby protected against contact with the roll.

MATHEVV F. KEVLIN. 

